Error Code P0172 showing,

Question

Hi, I own a 2005 Hyundai Accent, and recently, I happened to put 3 new sensors (Crank Sensor, Knock Sensor, and O2 Sensor) simply because the car was reluctant to pick up the speed at some point while driving and I had issues with starting the car as well.
while driving, I have to press the Acc Pedal 5 times for the engine to react to my movement. Lately, the car seems to jerking a lot whenever I try picking up a speed, or whenever I slow down before going uphill. at the mechanic it was diagnosed P0172 and the mechanic foresees the EVAP canister purge valve to be the main problem.
Does anyone have an idea on why the car jerks while driving, If anyone ever faced this issue, please I need your help.

Answer 1

The purge solenoid when that goes bad it usually set a EVAP code not a P0172 lean code, The purge once it stick open you would hear a clicking noise constantly. It to your advantage you replace the purge valve

​ These are purge valves , for the evap system if they do cause the lean condition replace it, this may not be the main problem a stuck open purge does not create a hard to start situation. don't be surprised if you still have a problem what you describe is more fuel starvation .